<template>
  <div class="tags-container">
    <el-card>
      <!-- 面包屑 -->
      <div slot="header" v-if="subject.id && subject.name">
        <el-breadcrumb separator-class="el-icon-arrow-right">
          <el-breadcrumb-item>学科管理</el-breadcrumb-item>
          <el-breadcrumb-item>{{ subject.name }}</el-breadcrumb-item>
          <el-breadcrumb-item>目录管理</el-breadcrumb-item>
        </el-breadcrumb>
      </div>
      <!-- 筛选 -->
      <el-row>
        <el-col :span="18">
          <el-form label-width="80px" size="small" :inline="true">
            <el-form-item label="目录名称">
              <el-input
                style="200px"
                v-model="requestParams.tagName"
              ></el-input>
            </el-form-item>
            <el-form-item label="状态">
              <el-select v-model="requestParams.state">
                <el-option :value="1" label="启用"></el-option>
                <el-option :value="0" label="禁用"></el-option>
              </el-select>
            </el-form-item>
            <el-form-item style="text-align: right">
              <el-button @click="clear()">清除</el-button>
              <el-button @click="filter()" type="primary">搜索</el-button>
            </el-form-item>
          </el-form>
        </el-col>
        <el-col :span="6" style="text-align: right">
          <el-button
            v-if="subject.id && subject.name"
            type="text"
            icon="el-icon-back"
            @click="$router.back()"
            >返回学科</el-button
          >
          <el-button
            icon="el-icon-edit"
            @click="openDialog()"
            type="success"
            size="small"
            >新增目录</el-button
          >
        </el-col>
      </el-row>
      <!-- 数据记录 -->
      <el-alert
        :title="`数据一共 ${total} 条`"
        style="margin-bottom: 15px"
        type="info"
        class="alert"
        :closable="false"
        show-icon
      ></el-alert>
      <!-- 表格 -->
      <el-table :data="tags">
        <el-table-column
          label="序号"
          type="index"
          width="80px"
        ></el-table-column>
        <el-table-column label="所属学科" prop="subjectName"></el-table-column>
        <el-table-column label="标签名称" prop="tagName"></el-table-column>
        <el-table-column label="创建者" prop="username"></el-table-column>
        <el-table-column label="创建日期">
          <template slot-scope="scope">{{
            scope.row.addDate | parseTimeByString
          }}</template>
        </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">{{
            scope.row.state === 1 ? "已启用" : "已禁用"
          }}</template>
        </el-table-column>
        <el-table-column label="操作" width="150px">
          <template slot-scope="scope">
            <el-button type="text" @click="toggleState(scope.row)">{{
              scope.row.state === 1 ? "禁用" : "启用"
            }}</el-button>
            <el-button
              type="text"
              @click="openDialog(scope.row)"
              :disabled="scope.row.state === 1"
              >修改</el-button
            >
            <el-button
              type="text"
              @click="delTag(scope.row)"
              :disabled="scope.row.state === 1 || scope.row.totals > 0"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        style="margin-top: 20px; text-align: right"
        background
        layout="prev, pager, next, sizes, jumper"
        :total="total"
        :page-size="requestParams.pagesize"
        :current-page="requestParams.page"
        @current-change="pager"
        :page-sizes="[5, 10, 20, 50]"
        @size-change="handleSizeChange"
        hide-on-single-page
      ></el-pagination>
    </el-card>
    <!-- 添加|修改 -->
    <tags-add
      ref="tagssAdd"
      :data="currTag"
      @updateList="updateList()"
    ></tags-add>
  </div>
</template>

<script>
import { list, changeState, remove } from '@/api/hmmm/tags'
import TagsAdd from '../components/tags-add'
export default {
  name: 'TagsList',
  components: { TagsAdd },
  data() {
    return {
      requestParams: {
        tagName: null,
        state: null,
        page: 1,
        pagesize: 10
      },
      total: null,
      tags: [],
      currTag: {}
    }
  },
  computed: {
    subject() {
      return this.$route.query || {}
    }
  },
  created() {
    this.getList()
  },
  watch: {
    '$route.query': function () {
      this.getList()
    }
  },
  methods: {
    openDialog(tag = {}) {
      this.currTag = tag
      this.$nextTick(() => {
        this.$refs.tagssAdd.open()
      })
    },
    // 切换状态
    async toggleState(tag) {
      await changeState({
        id: tag.id,
        state: tag.state === 1 ? 0 : 1
      })
      this.$message.success('操作成功')
      tag.state = tag.state === 1 ? 0 : 1
    },
    async delTag(tag) {
      await this.$confirm('此操作将永久删除该标签, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
      await remove(tag)
      this.$message.success('删除成功')
      this.getList()
    },
    // 清除筛选条件
    clear() {
      this.requestParams = {
        tagsName: null,
        state: null,
        page: 1,
        pagesize: 10
      }
    },
    // 进行筛选
    filter() {
      this.requestParams.page = 1
      this.getList()
    },
    // 查询列表
    async getList() {
      console.log(this.requestParams);
      this.requestParams.subjectID = this.subject.id || null
      const { data } = await list(this.requestParams)
      this.tags = data.items
      this.total = data.counts
    },
    // 切换条数
    handleSizeChange(size) {
      this.requestParams.page = 1
      this.requestParams.pagesize = size
      this.getList()
    },
    // 切换分页
    pager(np) {
      this.requestParams.page = np
      this.getList()
    },
    // 新增|修改 后更新列表
    updateList() {
      if (!this.currTag.id) {
        this.requestParams.page = 1
      }
      this.getList()
    }
  }
}
</script>

<style lang="scss" scoped>
.tags-container {
  padding: 10px;
}
</style>
